1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pickupchik [31]
3 years ago
11

Richard drives at a speed of 70 miles per hour.How long will it take to drive 315 miles?​

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0

Answer:

4.5 hours

Step-by-step explanation:

t=d/r

315/70=4.5

You might be interested in
3.48 An apartment seeker in Manhattan estimates that 10% of the available apartments in her price range are in acceptable condit
REY [17]

Answer:

a) 10 weeks

b) P(k≤2)=0.190

c) P(k>17)=0.167

Step-by-step explanation:

This problem can be solved applying the geometric distribution.

The probability of needing k weeks to find an acceptable apartment can be written as:

P(k)=(1-p)^{k-1}p=0.9^{k-1}\cdot 0.1

a) The expected value of this distribution is:

E(x)=1/p=1/0.1=10

Answer: 10 weeks

b) The probability of finding an acceptable department in the first 2 weeks is:

P(k\leq2)=P(1)+P(2)=0.1*0.9^0+0.1*0.9^1\\\\P(k\leq 2)=0.1+0.09=0.19

c) We have to calculate P(k>17)

P(k>17)=1-\sum_1^{17}P(k_i)\\\\P(k>17)=1-(P(1)+P(2)+P(3)+...+P(17))\\\\P(k>17)=1-(0.1+0.09+0.081+0.073+0.066+0.059+0.053+0.048+0.043+0.039+0.035+0.031+0.028+0.025+0.023+0.021+0.019)\\\\P(k>17)=1-0.833=0.167

6 0
3 years ago
The probability that a student guesses the correct answer to a four-choice multiple-choice question is ​P(correct)=0.25. How man
mylen [45]

Answer: 18

Step-by-step explanation:

0.25 or 1/4 can be answered correctly

there's 72 questions

0.25*72=18

7 0
3 years ago
2 x 3 x 6 = 3 x 2 x 6<br><br> What property is this?
RoseWind [281]
Distributive Property
<span><span><em><u>The Distributive Property is easy to remember, if you recall that "multiplication </u></em></span><u>distributes</u><span><em><u> over addition". Formally, they write this property as "</u></em></span><span><u>a(b + c) = ab + ac</u></span><span><em><u>".</u></em></span></span>
6 0
3 years ago
If a car travels 180 km on 12 liters of gas, how many km per liter does the car get? Express in simplest form.
lora16 [44]

Answer:

<u>5 kilo-meters per liter of gas</u>

Step-by-step explanation:

180 divided by 12 would be 180 / 12 = 5 km per liter

<em>(P.S., pls mark me brainliest, and have a nice day)</em>

6 0
3 years ago
Help i will give brainlist
zhuklara [117]

Answer:

The answer is d

Step-by-step explanation:

simplyfied into the simpiliest form possible

3 0
3 years ago
Read 2 more answers
Other questions:
  • Rewrite the quadratic function in standard form and give the vertex f(x)=3x^2-6x-9
    8·1 answer
  • The perimeter of Raul's picture frame is 108 centimeters the length of the picture frame. Is. 18 centimeters that is. The width
    5·2 answers
  • The measure,in degrees,of the three angles of a triangle are given by 2x + 1,3x - 3, and 9x.Whar is the measure of the smallest
    7·1 answer
  • What fraction of the total # of students earned at least a C? Include small explanation on how you did it.
    12·2 answers
  • Solve for x your answer must be simplified.<br> −7x&gt;10
    13·1 answer
  • Question 1 (1 point)
    12·1 answer
  • Graph ƒ(x) = -3x + 7
    6·1 answer
  • The function shown is reflected across the y-axis to create a new function. Which is true about the domain and range of each fun
    13·1 answer
  • Plz help I’m timed :(
    9·2 answers
  • 5(b + 6) - 3b I need help TwT
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!